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Bad breath odor
Last reviewed: 04.07.2025
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Bad breath, also known as halitosis, can be caused by a variety of medical conditions. Don't worry, your cat shouldn't have minty breath, but if the smell is very strong and foul, it could be due to a medical condition.
What can cause bad breath in a cat?
Most often, bad breath is caused by a buildup of odor-causing bacteria in your pet's mouth. This can be due to dental or gum disease. In fact, some cats may be particularly prone to plaque and tartar buildup. Diet and dermatological conditions can also contribute. However, persistent bad breath can indicate more serious conditions, such as oral, respiratory, gastrointestinal, liver, or kidney disease. In all cases, halitosis is a signal that an examination is needed.
How to determine the cause of bad breath in a cat?
A veterinarian can pinpoint the cause. A physical exam can reveal the cause of the problem. If this is not possible, further testing will likely be recommended. Be prepared to answer questions about nutrition, oral hygiene, exercise, and your cat's overall personality and behavior.
When should you visit a veterinarian?
The following symptoms require veterinary attention:
- Large, brownish tartar on your cat's teeth, especially if accompanied by drooling, difficulty eating, and red, inflamed gums, may indicate serious dental and gum disease.
- An unusually sweet or fruity odor may indicate diabetes, especially if your cat is drinking and urinating more often than usual.
- Urine smell from the mouth may be a sign of kidney disease.
- An unusually foul odor accompanied by vomiting, loss of appetite, and yellow discoloration of the cornea and/or gums may be a sign of liver disease.
- The cat touches its mouth with its paw.
How to treat bad breath?
Treatment depends on the diagnosis made by your veterinarian. If plaque is the cause, your cat may need a professional cleaning. If it’s a gastrointestinal, liver, kidney, or lung problem, talk to your veterinarian about what steps you should take.
How to Prevent Cat Breath from Smelling Bad?
Many people believe that bad breath in cats, especially at a certain age, is normal, but this is not true. In fact, taking care of your pet's oral health will not only make your life together more enjoyable, it is also a good preventative measure:
- Bring your pet in for regular medical checkups to ensure there are no medical conditions that can cause halitosis.
- Make sure your veterinarian monitors your cat's dental health and breath odor.
- Brush your cat's teeth often - daily is ideal. (Be sure to use toothpaste formulated for cats, as human toothpaste can upset your pet's stomach.)
- Talk to your veterinarian about oral health products for home use, he or she may be able to recommend something.
- Talk to your veterinarian about a diet that can help prevent dental disease. Some people find that the abrasive action caused by chewing hard foods can slow down plaque formation.
What Happens If You Ignore Cat Breath Odor?
If left untreated, gum disease and tartar buildup, both of which cause bad breath, can lead to infection and tooth loss.